AdMob Mediation is a feature that lets you serve ads to your apps from multiple sources, including the AdMob Network, third-party ad networks, and AdMob campaigns. AdMob Mediation helps maximize your fill rate and increase your monetization by sending ad requests to multiple networks to ensure you find the best available network to serve ads.
This guide is your one-stop shop for integrating mediation into your AdMob app.
Prerequisites
Before you can integrate mediation for an ad format, you need to integrate that ad format into your app:
New to mediation? Read:
Choosing your mediation networks
Google mediation supports over 30 third-party ad networks. Integrating mediation requires changes in these places:
- Third-party ad network UI - Sign up for the third-party ad network and create a placement in their front end.
- AdMob UI - Update your ad unit's mediation settings to include the ad network. It is also recommended that you set up ad network optimization for ad networks that support it.
- App code - Update your app to include the third-party ad network's SDK, and an adapter library that communicates between Google and the third-party ad network to request and serve ads.
Select an ad network below to get started.
| Ad Network | Banner | Interstitial | Rewarded Video | Rewarded Video (new APIs) |
Native Advanced | ANO support |
|---|---|---|---|---|---|---|
| Open source and versioned | ||||||
| AdColony | Country-specific | |||||
| AppLovin | Country-specific | |||||
| Chartboost | Country-specific | |||||
| DU Ad Platform | Country-specific | |||||
| Country-specific | ||||||
| InMobi | Country-specific | |||||
| ironSource | Country-specific | |||||
| maio | Global | |||||
| MoPub | Country-specific | |||||
| myTarget | Country-specific | |||||
| nend | Global | |||||
| Tapjoy | Country-specific | |||||
| Unity Ads | Country-specific | |||||
| Vungle | Country-specific | |||||
| Non-open source | ||||||
| AdFalcon | Country-specific | |||||
| Flurry | Country-specific | |||||
| Fyber | Country-specific | |||||
| i-mobile | Global | |||||
| Leadbolt | Country-specific | |||||
| LG U+AD | None | |||||
| MobFox | Global | |||||
| ONE by AOL | Global | |||||
| Tencent GDT | None | |||||
| Vpon | None | |||||
| Zucks | Country-specific | |||||
Open source and versioned adapters
If an adapter is labeled "Open source and versioned" in the above table, it means the adapter source code is open-sourced in Google's GitHub repository, enabling you to debug issues yourself should you choose to do so.
It also means that there are versioned adapter builds in Google's bintray
repository, built
against a specific version of the third-party ad network SDK. You can also
integrate these adapters into your app with a single line change to your app's
build.gradle file. Click on a specific ad network's guide for more details.
Adapter versioning
The adapter versioning scheme for versioned adapters is <third-party
SDK version>.<adapter patch version>. For example, if an
ad network releases a new SDK version 1.2.3, a new adapter version 1.2.3.0
will be released to Bintray after being tested against that new SDK.
If an adapter needs updating outside the lifecycle of a third-party SDK release,
the patch version will increase. A bug fix for adapter version 1.2.3.0 will
be released in version 1.2.3.1.
ANO support
When you configure multiple ad networks for mediation, you have to specify what order to request these networks by setting their respective CPM. This can be difficult to manage, since ad network performance changes over time.
Ad network optimization (ANO) is a feature that enables you to generate the highest CPM from the ad networks in your mediation chain by automating the process of ordering the mediation chain to maximize revenue.The mediation networks table above uses the following values for ANO support:
| ANO support | What it means |
|---|---|
Country-specific |
eCPM values are automatically updated on your behalf on a per-country basis. This is the optimal type of optimization. |
Global |
A single global eCPM value is automatically updated on your behalf. |
None |
You must manually configure an eCPM value for that ad network. |
Click on a specific ad network's guide for details on how to configure ANO for that network.
Custom events
If you're looking for an ad network and don't see it on the list above, you can use custom events to write your own integration with that ad network. See Custom Events for more details on how to create a custom event.
Initialize your ad object with an Activity instance
In the constructor for a new ad object (for example,
AdView),
you must pass in an object of type
Context.
This Context is passed on to other ad networks when using mediation. Some
ad networks require a more restrictive Context that is of type
Activity
and may not be able to serve ads without an Activity instance. Therefore,
we recommend passing in an Activity instance when initializing ad objects
to ensure a consistent experience with your mediated ad networks.
Passing location to mediation networks
The Google Mobile Ads SDK does not forward location information to mediation networks unless you explicitly provide it in the ad request. See the targeting guide for details on how to provide location information in the ad request.
Banner ads mediation
Make sure to disable refresh in all third-party ad networks UI for banner ad units used in AdMob mediation. This will prevent a double refresh since AdMob also triggers a refresh based on your banner ad unit's refresh rate.
Rewarded ads mediation
We recommend that you override all default reward values by setting reward values in the AdMob UI. To do this, select the Apply to all networks in Mediation groups box so that the reward is consistent across all networks. Some ad networks don't provide a reward value or type at all. By overriding the reward value, the reward is consistent no matter which ad network served the ad.
For more information on setting reward values in the AdMob UI, refer to create a rewarded ad unit.
Native ads mediation
The following are some best practices to consider when implementing native mediation.
Request both system-defined formats
The Mobile Ads SDK allows you to specify a preference for app install ads, content ads, or both for each request. However, not every mediated network offers both of these formats, and some are unable to filter by format. In order to make sure that ad requests have the best chance of being filled, it's highly recommended that apps request both formats when loading native ads and include rendering code that can display either one.
Native ad presentation policy
Each ad network has its own policies. When using mediation, it's important to remember that your app still needs to abide by the policies of the mediated network that provided the ad.
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